Nothing suggested here worked for me. Turned Udisk protection off, put it in usb mode with the power switch and B instead of reset-B, ran the second command a couple times in a row, unplugged the USB cable... screen stays black, and once reset, the Dingoo runs fine, just no dual boot option. Dismayed. Here is my post on the subject in another forum:
OK, I've been trying to flash my Dingoo to put Dingux on it. I've got the Dingoo in USB mode, have the right drivers installed, tried it on Mac and PC, and I get the same results.
C:\Documents and Settings\James\Desktop\dual_boot_installer_20090628>usbtool-win 1 hwinit.bin 0x80000000
USBtool v0.4 - (C) 2008 Maurus Cuelenaere
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[INFO] File size: 4576 bytes
[INFO] Searching for device...
[INFO] Found device, uploading application.
[INFO] GET_CPU_INFO: JZ4740V1
[INFO] SET_DATA_ADDRESS to 0x80000000... Done!
[INFO] Sending data... Done!
[INFO] Verifying data... Done!
[INFO] Booting device [STAGE1]... Done!
C:\Documents and Settings\James\Desktop\dual_boot_installer_20090628>usbtool-win.exe 1 zImage_dual_boot_installer_ILI9331 0x80600000
USBtool v0.4 - (C) 2008 Maurus Cuelenaere
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[INFO] File size: 3567616 bytes
[INFO] Searching for device...
[INFO] Found device, uploading application.
[INFO] GET_CPU_INFO: JZ4740V1
[INFO] SET_DATA_ADDRESS to 0x80600000... Done!
[INFO] Sending data... Done!
[INFO] Verifying data... Done!
[INFO] Booting device [STAGE1]... Done!
That's as far as I get. The Dingoo screen never shows the flash script running - stays black. The Dingoo itself is unharmed - boots up just fine. I got this one from ThinkGeek. Perhaps they now have the thing write protected? Anyone else run into this?